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PVC pipe fittings are used in construction, electrical […]
PVC pipe fittings are used in construction, electrical conduit, agricultural irrigation, industrial sewage and other projects. China's PVC pipes have developed rapidly in recent years, with an annual growth rate of 8% and an annual demand growth rate of 2%. Among plastic pipes, the amount of PVC Ball Valve has been far ahead, and it is widely used in water supply and drainage pipes. Due to the relatively mature technology, in recent years, PVC water supply pipes have not invested much in product innovation and relatively few new products.
There are many ordinary products on the market, and there are few high-tech and high-value-added products. Similar general-purpose products and medium and low-end products account for the majority Partly, there are few high-end products. At present, the domestic production capacity of plastic pipes reaches 3 million tons, mainly including PVC, PE and PP-R pipes. Among them, PVC pipes are the plastic pipes with the largest market share, accounting for nearly 70% of the plastic pipes. There are more than 1,600 PVC pipe production lines. The annual production capacity is more than 2.5 million tons. In 2003, the annual output of PVC pipes (pipe fittings) reached more than 1.2 million tons. In plastic pipes, the share of PVC is 70%,
PE accounts for 25%, PP-R accounts for 4%, and others account for 1%.
PVC pipes means that the main raw material for pipes is PVC resin powder. The types of PVC pipes are generally classified according to the purpose of the pipes: drainage pipes, water supply pipes, wire pipes, cable sheathing...Because the raw material formulations are different, the pressure resistance of various pipes and other aspects The indicators are not the same. PVC water supply pipes are used with water supply accessories for water supply projects in buildings. PVC drainage pipes are used for drainage and sewage.